So, if you want a quieter hood and don’t cook often, purchase a 600 CFM range hood. ![]() In most cases, the higher the CFM, the higher the sone level of the range hood. Then, buy a hood based on that measurement. We recommend the following: first, think about the max amount of noise that you would be comfortable with. So, for example, when buying a range hood that runs at six sones, six is the maximum noise level that the range hood will produce. Typically, sones are measured at maximum hood speed or CFM. Sone levels are lowest when your hood is set to the lowest speed and get louder incrementally with each speed. The lower the sone value, the quieter the hood. Eight sones are equivalent to a normal conversation or background noise. One sone is similar to a whisper or the sound of an extremely quiet refrigerator or dishwasher. Check out the table below which has sones to decibel conversions up to 20 sones. These equations may look daunting which is why we made calculation easy for you. ![]() If you have decibels and want to find the number of sones, use this equation: To find how many decibels are in one sone, plug one into the equation: Here is a helpful equation to convert sones to decibels: Sones to decibels Conversion Chart – How many decibels are in a sone? To compare decibel levels with sones, check out this helpful chart below. ![]() For example, about a 10 dB increase doubles loudness.īoth sones and decibels are measurements of sound pressure. In contrast, decibels are measured on a logarithmic scale. As a linear measurement, doubling the sone level is equivalent to doubling the loudness quadrupling the sone value quadruples the loudness, etc. Sones are measured on a linear scale, like inches or centimeters. This unit provides accurate information on the amount of sound the blower produces inside the vent hood. Stevens was a psychologist and researcher who founded Harvard’s Psycho-Acoustic Laboratory. A sone, named by Stanley Smith Stevens in 1936, is an internationally recognized unit of measurement for loudness.
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